The state’s economic-development chief yesterday pledged to work with any developer chosen by the MTA to build over the West Side rail yards, even if the Jets’ plan for a stadium doesn’t make the final cut.

“Obviously, if a new project comes into play here as a result of whatever agreement between the MTA and a potential developer, we would look at that project,” said Charles Gargano, chairman of the Empire State Development Corp.

The MTA has opened the site of a proposed stadium west of 11th Avenue to competitive bids.

But a new developer would have to rezone the site from its current manufacturing designation to allow for housing, hotels or office buildings.

The Jets, in earlier agreements with the city and state, had won those zoning exemptions for a stadium.

Mayor Bloomberg has said it would take several years for a new developer to put in place approvals already won by the Jets.

Gargano said he expects those approvals, including environmental reviews and public hearings, could take “a minimum of 8 to 12 months.”

“These things all take time. If the MTA reached an agreement with a different developer, we would certainly take a look at that project,” said Gargano.